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Description: Part 323, Shorelands Protection and Management, of the Natural ResourcesEnvironmental and Protection Act (NREPA), 1994 Public Act 451, as amended,provides protection from the natural hazards of coastal erosion and flooding as well asenvironmental protection of our fragile coastal areas. Part 323 identifies and regulatesHigh-Risk Erosion Areas (HREA), Environmental Areas (EA), and Flood Risk Areas (FRA) within the Great Lakes coastalzone. Recession rate studies of coastal shorelines defined HREAs in many counties during the 1980s. According to R 281.22 (22) the department shall update the recession rate studies every 10 years to reflect varying lake levels and changes in erosion rates. Of 29 counties currently designated 12 counties have not been updated since designation. Counties in the Lower Peninsula on Lake Michigan were last updated in the mid-1990s except for Berrien which was updated in 2007.
Copyright Text: Michigan Department of Enviornmental Quality
Description: This Ecoregion database was delineated by Dennis Albert for Michigan. Hierarchial units include Section, Subsection, and Sub_subsection. Ecosystem components used to distinguish major landscapes are macroclimate, physiography, soil and vegetation. In Michigan, long-term climatic records were a primary component in delineating the larger hierarchical units - sections and subsections. Physiography was used in conjustion with climatic data to refine section and subsection boundaries. At the sub-subsection level, the primary determinants of boundaries were physiography and soil conditions.
Description: This layer reflects all MDEQ recognized Sections that encompass waters and wetlands under Corps permit authority as of the October 1, 2012 Navigable Waters of the United States within the Regulatory Jurisdiction of the United States U.S. Army Corps of Engineers Detroit District.
Description: Determining the location and extent of protected habitats is the first step in developing conservation plans for the Great Lakes and prioritizing additional habitat for protection. All current Great Lakes habitat management plans include protection goals. However, there is no comprehensive database that can display and analyze habitats that are currently protected within the Great Lakes. A comprehensive GIS database of protected lands in the Great Lakes will be utilized by conservation organizations for conservation planning, public accountability and project collaboration. This layer will enable organizations to work more efficiently and collaborate with other organizations that could potentially leverage additional funding from a variety of sources including, but not limited to: GLFWRA, GLRI, NAWCA, FWS GLCP, and private foundations. DU and TPL have been developing protected lands layers (both fee and easement) for over 10 years through the development of a Conservation and Recreation Lands (CARL), Conservation Almanac, and National Conservation Easement Database. Through this project, we have added an additional 13,680 protected lands to the database and corrected numerous attribute and spatial errors. While the actual acreage of protected land decreased by 217,173 acres, this was due mostly to mistakes in the early version of CARL by including federal lands that were identified as acquisition areas, but were not actually protected. In addition to the CARL layer developed for this project, two additional projects were benefited. Easement data collected as part of this project was also included in the National Conservation Easement Database (NCED, www.conservationeasement.us) and the Conservation Almanac (TPL, http://www.conservationalmanac.org).
Copyright Text: Funding for the development of the Protected Land layer (CARL) was provided by a grant from the U.S. Fish and Wildlife Service’s Great Lakes Fish and Wildlife Restoration Act (GLFWRA). Matching funding was provided by the U.S. Endowment for Forestry and Communities for the National Conservation Easement Database development in the Great Lakes. Past grants for the CARL project were provided by the Saginaw Bay Watershed Initiative Network (WIN), U.S Fish and Wildlife’s Great Lakes Coastal Program, and the Michigan Department of Environmental Quality’s Coastal Program.
Ducks Unlimited (DU) would also like to acknowledge and thank the many organizations that willingly gave us the data for the development of this Great Lakes CARL layer. As part of this project, The Trust for Public Land (TPL) was subcontracted to work on the public lands, while Ducks Unlimited focused on the private lands.
Description: This layer is created from combined urbanized area from the 2000 U.S. Census with additions from the 2010 U.S. Census. Urbanized Areas (UAs) contain 50,000 or more people, while Urban Clusters (UCs) contain between 2,500-50,000 people. EGLE removes UCs for the purposes of determining if a location can be regulated by the Municipal Separate Storm Sewer (MS4) program. This UA layer is intersected with county and minor civil division boundaries. It will be updated with the release of new urbanized areas with each decennial Census. See FAQs at https://www.census.gov/geo/reference/ua/uafaq.html. Source: U.S. Census Bureau (2010).Municipalities with public facilities within this area may be required to hold an MS4, or Municipal Separate Storm Sewer Systems, NPDES permit to regulate their storm water discharges. Storm water can become contaminated by illicit connections, improper garbage disposal, contact with industrial materials/waste, and pet or wildlife waste. Updated on : Feb 16, 2016
Copyright Text: Peter Vincent, Water Resources Division, Michigan Department of Environment, Great Lakes, and Energy (EGLE).
Modified by Molly Rippke. Source: U.S. Census Bureau, 2010. Urban and Rural Classification for the State of Michigan. .
Description: Michigan's watersheds for USEPA approved Copper Total Maximum Daily Loads (TMDLs). The watersheds indicate approximate areas used for determination of the waste load (point sources) and load allocation (nonpoint sources) of each TMDL. Data are compiled by the State of Michigan Department of Environment, Great Lakes, and Energy (EGLE), Water Resources Division. At a minimum, this dataset is updated every two years after the approval of Michigan's Integrated Report (303d List). Features include a hyperlink to the applicable TMDL document, and the year of USEPA approval. Version: November, 2020.
Copyright Text: Molly Rippke, Water Resources Division, Michigan Department of Environment, Great Lakes, and Energy (EGLE). Please direct questions to: Rippkem@michigan.gov
Description: Michigan's watersheds for USEPA approved Dissolved Oxygen (D.O.) Total Maximum Daily Loads (TMDLs). The watersheds indicate approximate areas used for determination of the waste load (point sources) and load allocation (nonpoint sources) of each TMDL. Data are compiled by the State of Michigan Department of Environment, Great Lakes, and Energy (EGLE), Water Resources Division. At a minimum, this dataset is updated every two years after the approval of Michigan's Integrated Report (303d List). Features include a hyperlink to the applicable TMDL document, and the year of USEPA approval. Version: November, 2020.
Copyright Text: Molly Rippke, Water Resources Division, Michigan Department of Environment, Great Lakes, and Energy (EGLE). Please direct questions to: Rippkem@michigan.gov
Description: Michigan's watersheds for USEPA approved Nitrate Total Maximum Daily Loads (TMDLs). The watersheds indicate approxiate areas used for determination of the waste load (point sources) and load allocation (nonpoint sources) of each TMDL. Data are compiled by the State of Michigan Department of Environment, Great Lakes, and Energy (EGLE), Water Resources Division. At a minimum, this dataset is updated every two years after the approval of Michigan's Integrated Report (303d List). Features include a hyperlink to the applicable TMDL document, and the year of USEPA approval. Version: November, 2020.
Copyright Text: Molly Rippke, Water Resources Division, Michigan Department of Environment, Great Lakes, and Energy (EGLE). Please direct questions to: Rippkem@michigan.gov
Description: Michigan's watersheds for USEPA approved Phosphorus Total Maximum Daily Loads (TMDLs). The watersheds indicate approximate areas used for determination of the waste load (point sources) and load allocation (nonpoint sources) of each TMDL. Data are compiled by the State of Michigan Department of Environment, Great Lakes, and Energy (EGLE), Water Resources Division. At a minimum, this dataset is updated every two years after the approval of Michigan's Integrated Report (303d List). Features include a hyperlink to the applicable TMDL document, and the year of USEPA approval. Version: November, 2020.
Copyright Text: Molly Rippke, Water Resources Division, Michigan Department of Environment, Great Lakes, and Energy (EGLE). Please direct questions to: Rippkem@michigan.gov
Description: Michigan's watersheds for USEPA approved Sediment and Biota Total Maximum Daily Loads (TMDLs). The watersheds indicate approximate areas used for determination of the waste load (point sources) and load allocation (nonpoint sources) of each TMDL. Data are compiled by the State of Michigan Department of Environment, Great Lakes, and Energy (EGLE), Water Resources Division. At a minimum, this dataset is updated every two years after the approval of Michigan's Integrated Report (303d List). Features include a hyperlink to the applicable TMDL document, and the year of USEPA approval. Version: November, 2020.
Copyright Text: Molly Rippke, Water Resources Division, Michigan Department of Environment, Great Lakes, and Energy (EGLE). Please direct questions to: Rippkem@michigan.gov
Description: Michigan's watersheds for USEPA approved E. coli Total Maximum Daily Loads (TMDLs). The watersheds indicate approxiate areas used for determination of the waste load (point sources) and load allocation (nonpoint sources) of each TMDL. Data are compiled by the State of Michigan Department of Environment, Great Lakes, and Energy (EGLE), Water Resources Division. At a minimum, this dataset is updated every two years after the approval of Michigan's Integrated Report (303d List). Features include a hyperlink to the applicable TMDL document, and the year of USEPA approval. Version: November, 2020.
Copyright Text: Molly Rippke, Water Resources Division, Michigan Department of Environment, Great Lakes, and Energy (EGLE). Please direct questions to: Rippkem@michigan.gov
Description: Michigan's watersheds for USEPA approved Total Maximum Daily Loads (TMDLs) for Polychlorinated Biphenyls (PCBs). The watersheds indicate approximate areas used for determination of the waste load (point sources) and load allocation (nonpoint sources) of each TMDL. Data are compiled by the State of Michigan Department of Environment, Great Lakes, and Energy (EGLE), Water Resources Division. At a minimum, this dataset is updated every two years after the approval of Michigan's Integrated Report (303d List). Features include a hyperlink to the applicable TMDL document, and the year of USEPA approval. Version: November, 2020.
Copyright Text: Molly Rippke, Water Resources Division, Michigan Department of Environment, Great Lakes, and Energy (EGLE). Please direct questions to: Rippkem@michigan.gov
Description: Features from the 1:24,000 scale National Hydrography Dataset (NHD) were used to depict inland stream trout and salmon type regulations. NHD features were altered to fit the extent of the regulations described in FO 200 and FO 210. Except for streams in the Michigan-Wisconsin Boundary Waters, any other inland stream not classified by type (1-4; GR, RA, BTRA) are still subject to trout and salmon fishing regulations as described on page 40 of the Michigan Fishing Guide. Please see pp. 24-25 for Michigan-Wisconsin Boundary Waters regulations. Note that the two inland stream trout and salmon regulation GIS layers only show the streams classified by type; these layers do not include any streams that are not classified by type. The regulation type associated with a stream feature is indicated in the RegulationType field and the designation status is indicated in the Designated field (with 0 as non-designated and 1 as designated). The RegulationType and Designated field are concatenated in the RegTypeDes to show the full type regulation and designation status. In some cases, a stream will have more than one regulation type assigned. In which case, the RegulationType field will have both types listed, as will the RegTypeDes field. Each regulation type is associated with specific rules for the length of the fishing and possession seasons, minimum size limits, and daily possession limits. See FO 200 and the Michigan Fishing Guide for more details about the individual regulation types. Regulation types are as follows: Type 1 – Type 1 Trout Stream; Type 2 - Type 2 Trout Stream; Type 3 - Type 3 Trout Stream; Type 4 - Type 4 Trout Stream; BTRA – Brook Trout Restoration Area; RA - Research Area Trout Stream; GR - Gear Restricted Stream. Designation status is either designated or non-designated. Designated trout streams are inland streams containing a significant population of trout or salmon, as identified by the State of Michigan. Designated trout streams are protected from certain activities, see the Michigan Fishing Guide or FO 210 for more details. All Type 1, Type 2, GR, RA, and BTRA are designated trout streams. Most Type 3 and Type 4 streams are designated trout streams. The main layer shows the majority of inland streams that are classified by type for trout and salmon regulations. However, there are some polygon features that cannot be displayed in this line layer and are represented in the BTRA polygon layer. To show all inland streams that are classified by type for trout and salmon regulations, both layers must be displayed in the proper order using established symbology. The BTRA polygon layer should be displayed on the top of the main stream regulations layer. When displaying the inland trout and salmon streams with inland trout and salmon lakes Types A-F & Special Type, both of the stream layers should be displayed underneath the Types A-F & Special Type layer. For the main regulation type layer, set the drawing order so that specific regulations type display on top of others. Do this by opening the feature class properties in the Table of Contents in ArcMap, then go to Symbology, then Advanced, then Symbol levels and using the following order, from top to bottom: Type 4 Non Designated, Type 3 Non Designated, GR Type 4 Designated, GR Type 2 Designated, GR Type 1 Designated, GR Designated, RA Designated, Type 4 Designated, Type 4 BTRA Designated, Type 3 Designated, Type 3 BRTA Designated, Type 2 Designated, Type 1 Designated, and Type 1 BTRA Designated. GIS layer was last updated 03/20/2023. Metadata record last updated 03/20/2023.
Copyright Text: Michigan Department of Natural Resources, Institute for Fisheries Research, National Hydrography Dataset
Description: Lakes from the 1:24,000 National Hydrography Dataset (NHD) were used to depict the Type A-F and Special Type inland lake fishing regulations for trout and salmon. Lake features from the NHD were altered to fit the extent of the regulations described in FO 200. Except for lakes in the Michigan-Wisconsin Boundary Waters and Sylvania Wilderness Area, any other inland lake not classified by type is subject to regulations as described on page 38 of the Michigan Fishing Guide. See pp. 24-25 and 26 for Michigan-Wisconsin Boundary Waters and Sylvania Wilderness Area regulations, respectively. Note that this GIS layer only shows lakes that are classified by type; this layer does not include any lakes that are not classified by type. Every lake in this layer has a regulation type and a designation status. Regulation type is indicated in the RegulationType field and the designation status is indicated in the Designated field (with 0 as non-designated and 1 as designated). The combined regulation type and designation status is indicated in the RegTypeDes field. Each regulation type is associated with specific rules for the length of the fishing and possession seasons, minimum size limits, daily possession limits, and tackle type. See FO 200 and the Michigan Fishing Guide for more details about the individual regulation types. Regulation types are as follows: A – Type A Trout Lake; B - Type B Trout Lake; C - Type C Trout Lake; D - Type D Trout Lake; E – Type E Trout Lake; F – Type F Trout Lake; Special - Special Type Trout Lake. Designation status is either designated or non-designated. Designated trout lakes are inland lakes containing a significant population of trout or salmon, as identified by the State of Michigan. Designated trout lakes are protected from certain activities, see the Michigan Fishing Guide or FO 200 for more details. All Type A and Type D lakes are designated trout lakes. All other trout lakes types (Type B, C, E, F, and Special) are non-designated lakes. GIS layer last updated 03/01/2023. Metadata record last updated 03/01/2023.
Copyright Text: Michigan Department of Natural Resources, Institute for Fisheries Research, National Hydrography Dataset
Description: This data set represents the extent, approximate location and type of wetlands and deepwater habitats in Michigan. These data delineate the areal extent of wetlands and surface waters as defined by Cowardin et al. (1979). The National Wetlands Inventory - Version 2, Surface Waters and Wetlands Inventory was derived by retaining the wetland and deepwater polygons that compose the NWI digital wetlands spatial data layer and reintroducing any linear wetland or surface water features that were orphaned from the original NWI hard copy maps by converting them to narrow polygonal features. Additionally, the data are supplemented with hydrography data, buffered to become polygonal features, as a secondary source for any single-line stream features not mapped by the NWI and to complete segmented connections. Certain wetland habitats are excluded from the National mapping program because of the limitations of aerial imagery as the primary data source used to detect wetlands. These habitats include seagrasses or submerged aquatic vegetation that are found in the intertidal and subtidal zones of estuaries and near shore coastal waters. Some deepwater reef communities (coral or tuberficid worm reefs) have also been excluded from the inventory. These habitats, because of their depth, go undetected by aerial imagery. By policy, the data also excludes certain types of "farmed wetlands" as may be defined by the Food Security Act or that do not coincide with the Cowardin et al. definition. Contact the Service's Regional Wetland Coordinator for additional information on what types of farmed wetlands are included on wetland maps. This dataset should be used in conjunction with the Wetlands_Project_Metadata layer, which contains project specific wetlands mapping procedures and information on dates, scales and emulsion of imagery used to map the wetlands within specific project boundaries.
Description: These sites were pulled from publicly accessible E. coli data. The criteria for inclusion are: a minimum of 5 daily geometric means collected during the total body contact recreation season (May 1 through October 31); with 70% or more of those daily geometric means exceeding the partial body contact standard of 1,000 E. coli per 100 mL.
Copyright Text: Rippke, M.B.
Water Resources Division